本文主要研究内容
作者朱启凡（2019）在《仿生虾蛄眼偏振成像机理研究》一文中研究指出：虾蛄眼具有强大的视觉系统,在具备多光谱探测能力的同时还可以探测偏振光,包括线偏振光以及圆偏振光。利用虾蛄眼的结构特性以及偏振光谱结合的光学特性进行仿生研究,虽然刚刚起步,但可以预见用于癌症的诊断与预测、汽车自动驾驶、水下探测以及偏振元件的设计制造等诸多领域,因此对虾蛄眼的仿生研究逐渐成为研究热点。本文从虾蛄眼形态学分析入手,对虾蛄眼进行分析。对中频带两行小眼的口虾蛄眼进行解剖并与齿指虾蛄的六行小眼的进行了对比分析。针对虾蛄偏振探测以及光谱探测生物结构进行研究,发现偏振探测以及光谱探测功能由感杆束中微绒毛阵列结构尺寸以及微绒毛膜上视蛋白所决定。分析了虾蛄眼感杆束结构中微绒毛结构的偏振探测机理,并发现该结构材料具有二向色性并且可以增强其二向色性吸收。通过分析该微绒毛阵列结构的相位特性得到其等效形式具有双折射相位延迟特性。根据微绒毛阵列结构具有偏振、滤波以及吸收特性,为仿生虾蛄眼偏振探测元件的设计提供依据。虾蛄眼不同偏振光谱特性具有不同的视蛋白以及微绒毛尺寸,根据这一特性和微绒毛结构,提出了一种将偏振光谱相结合的滤波元件。利用等效介质理论以及介质传输矩阵进行仿真分析,得到可以利用不同的孔阵列周期实现可见光内各个谱段的偏振陷波。针对矩孔结构存在通带透过率低等问题,进一步分析了光子晶体中的孔边界形状,对偏振陷波特性的影响,得到介质层厚度越小,通带透过率越高的结论。通过分析孔边界曲线的斜率变化对偏振陷波带宽的影响,发现曲线两端斜率差的正负以及大小影响偏振带宽。仿真斜入射时光子晶体结构的偏振陷波滤波特性,得到偏振陷波特性不会随着角度增加而增加,但陷波中心和带宽会随入射角的变化而偏移和变化。根据微绒毛阵列结构光谱偏振滤波以及光吸收与转换能力集成的特性,针对现有铝纳米线栅与探测器结构的集成结构消光比与偏振吸收率之间的矛盾,提出了一种铝和硅的双层纳米线栅结构。进一步利用硅纳米线栅实现偏振光谱吸收特性,仿生硅纳米线栅结构在周期为364nm,线栅厚度为53nm,线宽为114nm时获得在蓝光(436nm)偏振吸收方向吸收率大于80%,消光比大于15的蓝光偏振吸收结构。利用基于基底为闪耀光栅结构的硅纳米线栅,在周期为364nm,线宽为114nm,厚度为38nm,闪耀角为16°时,获得黄光(546nm)偏振吸收结构,其吸收率大于86%,消光比大于145;在线宽180nm,厚度53nm,闪耀角10°时,获得红光(700nm)处获得偏振吸收特性,其吸收率接近50%,消光比大于175。此外,可以利用透过线栅结构的光进行非偏振探测,增加了入射光的利用率。硅纳米线栅可以实现偏振探测的集成,其透射光具有偏振特性,受虾蛄眼第5行与第6行小眼近端感杆束正交微绒毛阵列的启发,分析了结构以及材料特性,建立了多层硅纳米线栅阵列结构,分析发现,单位正交层厚约薄,其偏振精度越高。获得单位硅纳米线栅周期为50nm,线宽为2nm,厚度为5nm,层间距为100nm,正交纳米线栅为600对时,可以获得两个偏振方向均大于96%的吸收,且两个方向的消光比均大于60。因此,该仿生双向结构可以实现双向偏振探测,对减少偏振成像空间分辨率的损失有着重要意义。
Abstract
ha gu yan ju you jiang da de shi jiao ji tong ,zai ju bei duo guang pu tan ce neng li de tong shi hai ke yi tan ce pian zhen guang ,bao gua xian pian zhen guang yi ji yuan pian zhen guang 。li yong ha gu yan de jie gou te xing yi ji pian zhen guang pu jie ge de guang xue te xing jin hang fang sheng yan jiu ,sui ran gang gang qi bu ,dan ke yi yu jian yong yu ai zheng de zhen duan yu yu ce 、qi che zi dong jia shi 、shui xia tan ce yi ji pian zhen yuan jian de she ji zhi zao deng zhu duo ling yu ,yin ci dui ha gu yan de fang sheng yan jiu zhu jian cheng wei yan jiu re dian 。ben wen cong ha gu yan xing tai xue fen xi ru shou ,dui ha gu yan jin hang fen xi 。dui zhong pin dai liang hang xiao yan de kou ha gu yan jin hang jie pou bing yu chi zhi ha gu de liu hang xiao yan de jin hang le dui bi fen xi 。zhen dui ha gu pian zhen tan ce yi ji guang pu tan ce sheng wu jie gou jin hang yan jiu ,fa xian pian zhen tan ce yi ji guang pu tan ce gong neng you gan gan shu zhong wei rong mao zhen lie jie gou che cun yi ji wei rong mao mo shang shi dan bai suo jue ding 。fen xi le ha gu yan gan gan shu jie gou zhong wei rong mao jie gou de pian zhen tan ce ji li ,bing fa xian gai jie gou cai liao ju you er xiang se xing bing ju ke yi zeng jiang ji er xiang se xing xi shou 。tong guo fen xi gai wei rong mao zhen lie jie gou de xiang wei te xing de dao ji deng xiao xing shi ju you shuang she she xiang wei yan chi te xing 。gen ju wei rong mao zhen lie jie gou ju you pian zhen 、lv bo yi ji xi shou te xing ,wei fang sheng ha gu yan pian zhen tan ce yuan jian de she ji di gong yi ju 。ha gu yan bu tong pian zhen guang pu te xing ju you bu tong de shi dan bai yi ji wei rong mao che cun ,gen ju zhe yi te xing he wei rong mao jie gou ,di chu le yi chong jiang pian zhen guang pu xiang jie ge de lv bo yuan jian 。li yong deng xiao jie zhi li lun yi ji jie zhi chuan shu ju zhen jin hang fang zhen fen xi ,de dao ke yi li yong bu tong de kong zhen lie zhou ji shi xian ke jian guang nei ge ge pu duan de pian zhen xian bo 。zhen dui ju kong jie gou cun zai tong dai tou guo lv di deng wen ti ,jin yi bu fen xi le guang zi jing ti zhong de kong bian jie xing zhuang ,dui pian zhen xian bo te xing de ying xiang ,de dao jie zhi ceng hou du yue xiao ,tong dai tou guo lv yue gao de jie lun 。tong guo fen xi kong bian jie qu xian de xie lv bian hua dui pian zhen xian bo dai kuan de ying xiang ,fa xian qu xian liang duan xie lv cha de zheng fu yi ji da xiao ying xiang pian zhen dai kuan 。fang zhen xie ru she shi guang zi jing ti jie gou de pian zhen xian bo lv bo te xing ,de dao pian zhen xian bo te xing bu hui sui zhao jiao du zeng jia er zeng jia ,dan xian bo zhong xin he dai kuan hui sui ru she jiao de bian hua er pian yi he bian hua 。gen ju wei rong mao zhen lie jie gou guang pu pian zhen lv bo yi ji guang xi shou yu zhuai huan neng li ji cheng de te xing ,zhen dui xian you lv na mi xian shan yu tan ce qi jie gou de ji cheng jie gou xiao guang bi yu pian zhen xi shou lv zhi jian de mao dun ,di chu le yi chong lv he gui de shuang ceng na mi xian shan jie gou 。jin yi bu li yong gui na mi xian shan shi xian pian zhen guang pu xi shou te xing ,fang sheng gui na mi xian shan jie gou zai zhou ji wei 364nm,xian shan hou du wei 53nm,xian kuan wei 114nmshi huo de zai lan guang (436nm)pian zhen xi shou fang xiang xi shou lv da yu 80%,xiao guang bi da yu 15de lan guang pian zhen xi shou jie gou 。li yong ji yu ji de wei shan yao guang shan jie gou de gui na mi xian shan ,zai zhou ji wei 364nm,xian kuan wei 114nm,hou du wei 38nm,shan yao jiao wei 16°shi ,huo de huang guang (546nm)pian zhen xi shou jie gou ,ji xi shou lv da yu 86%,xiao guang bi da yu 145;zai xian kuan 180nm,hou du 53nm,shan yao jiao 10°shi ,huo de gong guang (700nm)chu huo de pian zhen xi shou te xing ,ji xi shou lv jie jin 50%,xiao guang bi da yu 175。ci wai ,ke yi li yong tou guo xian shan jie gou de guang jin hang fei pian zhen tan ce ,zeng jia le ru she guang de li yong lv 。gui na mi xian shan ke yi shi xian pian zhen tan ce de ji cheng ,ji tou she guang ju you pian zhen te xing ,shou ha gu yan di 5hang yu di 6hang xiao yan jin duan gan gan shu zheng jiao wei rong mao zhen lie de qi fa ,fen xi le jie gou yi ji cai liao te xing ,jian li le duo ceng gui na mi xian shan zhen lie jie gou ,fen xi fa xian ,chan wei zheng jiao ceng hou yao bao ,ji pian zhen jing du yue gao 。huo de chan wei gui na mi xian shan zhou ji wei 50nm,xian kuan wei 2nm,hou du wei 5nm,ceng jian ju wei 100nm,zheng jiao na mi xian shan wei 600dui shi ,ke yi huo de liang ge pian zhen fang xiang jun da yu 96%de xi shou ,ju liang ge fang xiang de xiao guang bi jun da yu 60。yin ci ,gai fang sheng shuang xiang jie gou ke yi shi xian shuang xiang pian zhen tan ce ,dui jian shao pian zhen cheng xiang kong jian fen bian lv de sun shi you zhao chong yao yi yi 。
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论文作者分别是来自长春理工大学的朱启凡，发表于刊物长春理工大学2019-10-23论文，是一篇关于仿生虾蛄眼论文,偏振论文,光谱论文,吸收论文,纳米线栅论文,长春理工大学2019-10-23论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自长春理工大学2019-10-23论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。